Non-ALS related but communication is the topic.  Very interesting.
 
http://www.parade.com/health/2010/11/21-unlocking-the-silent-prison.html
 
Thanks,
Alisa
 
Alisa Brownlee, ATP
Clinical Manager, Assistive Technology Services
ALS (Lou Gehrig's Disease) Association National Office
 and Greater Philadelphia Chapter
Direct Phone: 215-631-1877